CN113492143A

CN113492143A - Container cleaning method and cleaning device

Info

Publication number: CN113492143A
Application number: CN202110712710.7A
Authority: CN
Inventors: 姚杰; 胡振和; 王涛; 余成; 赵桂根; 牛志强; 周谱; 陈鑫
Original assignee: China General Nuclear Power Corp; CGN Power Co Ltd; China Nuclear Power Operation Co Ltd
Current assignee: China General Nuclear Power Corp; CGN Power Co Ltd; China Nuclear Power Operation Co Ltd
Priority date: 2021-06-25
Filing date: 2021-06-25
Publication date: 2021-10-12
Anticipated expiration: 2041-06-25
Also published as: CN113492143B

Abstract

The present invention relates to a container cleaning method and a cleaning apparatus. The container cleaning method comprises the following steps: extending the flushing head into the cleaning container, flushing the interior of the cleaning container at high pressure, and moving the flushing head in the flushing process; the cleaning brush is extended into the cleaning container, and the inside of the cleaning container is brushed by the rotation of the cleaning brush; the interior of the cleaning container is rinsed again by the rinsing head and the rinsing head is moved during the rinsing process. The container cleaning method provided by the invention has the advantages that through the cleaning process of washing, brushing and washing and the use of the washing head and the cleaning brush, the operation intensity is reduced, the working pressure of workers is relieved, the cleaning efficiency and the cleaning effect are improved, and the residue of dirt in the cleaning container is reduced.

Description

Container cleaning method and cleaning device

Technical Field

The invention relates to the technical field of nuclear power plants, in particular to a container cleaning method and a cleaning device.

Background

When the pilot control cabinet is cleaned, the filter tank cannot be detached for cleaning due to extremely high matching precision among all the internal component units of the filter tank, the common cleaning process is wiping cleaning, a specific worker uses a special metal wiping rod and wraps wiping cloth outside the wiping rod, so that the wiping rod extends into the filter tank, and the inner surface of the filter tank is wiped and cleaned by shaking the wiping rod. However, such a wiping method has many disadvantages, for example, because the working space is limited, the worker needs to wipe in a half-squatting posture, the working strength is high, the cleaning efficiency is low, the cleaning effect is not ideal, and there is still a possibility of impurities.

Disclosure of Invention

In view of the above, it is necessary to provide a container cleaning method which solves the technical problems of the prior art, such as high working strength and low cleaning efficiency and cleaning effect.

A method of cleaning a container comprising the steps of: extending the flushing head into the cleaning container, flushing the interior of the cleaning container at high pressure, and moving the flushing head in the flushing process; the cleaning brush is extended into the cleaning container, and the inside of the cleaning container is brushed by the rotation of the cleaning brush; the interior of the cleaning container is rinsed again by the rinsing head and the rinsing head is moved during the rinsing process.

According to the container cleaning method, the cleaning head is firstly extended into the cleaning container to clean the interior of the cleaning container at high pressure, dirt on the inner wall can be directly forced to be peeled off under the action of the high pressure, or the adhesion force of the dirt relative to the inner wall is weakened, so that impurities and dirt on the inner wall of the cleaning container are cleaned. And the flushing head is moved in the cleaning process so as to facilitate more complete and comprehensive cleaning. Then, the cleaning brush is stretched into the cleaning container, the inside of the cleaning container is brushed by utilizing the rotation of the cleaning brush, and the cleaning brush has friction on the inner wall of the cleaning container, so that brushing is realized, and stubborn dirt is cleaned. And then, the interior of the cleaning container is washed again by using the washing head so as to completely strip off the brushed dirt relative to the inner wall, and the cleaning container is further completely cleaned by using the movement of the washing head. That is, through the washing process of washing-brushing-washing, and the use of the washing head and the cleaning brush, not only the operation intensity is reduced, the working pressure of workers is relieved, but also the cleaning efficiency and the cleaning effect are improved, and the residue of dirt in the cleaning container is reduced.

In one embodiment, the flushing is performed with demineralized water at a pressure of 0.6MPa to 1.3 MPa.

In one embodiment, the flushing head adopts a high-pressure rotary spray head, and the flushing head reciprocates at least twice along the axial direction of the cleaning container.

The invention also provides a cleaning device which can effectively clean the cleaning container and improve the cleaning efficiency and the cleaning effect.

A cleaning device comprises a washing head, a cleaning brush, a first connecting seat and a second connecting seat; the cleaning brush is rotatably connected to the second connecting seat, and the first connecting seat and the second connecting seat can be selected to be detachably connected with the cleaning container; the first connecting seat is provided with a water supply hole used for connecting a water outlet pipe, and the water supply hole can be communicated with an inner cavity of the cleaning container.

Foretell cleaning device connects washing head and cleaning brush respectively through two connecting seats of connecting seat one and connecting seat to can dismantle the connection through the alternative of two relative cleaning containers of connecting seat one and connecting seat, so that utilize washing head and cleaning brush respectively to clean cleaning container, the waste water after the washing can send out through the delivery port moreover, need not to cause the influence to the scrubbing of cleaning brush. Namely: this cleaning device adopts and washes and scrub the cleanness that the alternative mode realized the cleaning container, compares in the manual work and cleans, not only reduces operation intensity, alleviates staff's operating pressure, improves cleaning efficiency and clean effect moreover, reduces the remaining of dirt in the cleaning container.

In one embodiment, the connecting seat comprises a connecting part and a guide part; the guide part is convexly arranged on the connecting part along the axial direction of the connecting part, the guide part is used for extending into the cleaning container, and the water feeding hole axially penetrates through the connecting part and the guide part; the connecting portion is configured with a plurality of mounting holes spaced about an axis of the connecting portion.

In one embodiment, the guide part is configured with a water delivery groove communicated with the water delivery hole, and the bottom of the water delivery groove is flush with the end face of the connecting part facing the guide part.

In one embodiment, a side of the guide portion, on which the water supply hole is provided, is configured with a sinking platform sinking toward the connection portion.

In one embodiment, the first connecting seat is provided with a sliding hole for the flushing pipe to pass through, and the hole wall of the sliding hole is provided with an annular groove;

the cleaning device further comprises a sealing ring, and the sealing ring is mounted in the annular groove and is tightly pressed between the first connecting seat and the flushing pipe.

In one embodiment, the cleaning brush comprises a connecting shaft and a brush roller connected to the connecting shaft, and the second connecting seat is provided with a rotating hole for the connecting shaft to pass through; the cleaning device further comprises a retainer, the retainer is arranged in the rotating hole, and the connecting shaft is rotatably connected with the second connecting seat through the retainer.

In one embodiment, the cleaning device further comprises a guide ring, and the guide ring is sleeved on the connecting shaft and is installed in the rotating hole.

In one embodiment, the cleaning device further comprises a driving member and a coupling, and one end of the connecting shaft, which is far away from the brush roller, is connected to the driving shaft of the driving member through the coupling.

In one embodiment, the cleaning device further comprises a water inlet pipe and a connecting connection pipe, and one end of the flushing pipe, which is far away from the flushing head, is connected to the water inlet pipe through the connecting connection pipe.

In one embodiment, the cleaning device further comprises a pressure regulating valve mounted to the flushing pipe between the water inlet pipe and the flushing head.

In one embodiment, the cleaning device further comprises a sealing gasket, and the sealing gasket is clamped between the first connecting seat and the second connecting seat and the cleaning container respectively.

Drawings

FIG. 1 is a schematic view of a cleaning apparatus according to an embodiment of the present invention in a flushing state;

FIG. 2 is a partial cross-sectional view of the cleaning apparatus provided in FIG. 1 in a flushing state;

FIG. 3 is an enlarged view of a portion of FIG. 2 at A;

FIG. 4 is a schematic view of the first connecting seat in a flushing state of the cleaning device shown in FIG. 1;

FIG. 5 is a schematic view of a cleaning apparatus according to an embodiment of the present invention in a brushing mode;

FIG. 6 is a partial cross-sectional view of the cleaning apparatus provided in FIG. 5 in a brushing configuration;

fig. 7 is a flowchart of a container cleaning method according to an embodiment of the present invention.

Reference numerals: 10-a rinsing head; 20-a cleaning brush; 21-a connecting shaft; 22-a brush roll; 30-connecting seat one; 40-connecting seat II; 50-a flushing pipe; 60-water outlet pipe; 70-sealing ring; 80-a cage; 90-a guide ring; 100-a drive member; 110-a coupling; 120-water inlet pipe; 130-connecting the adapter; 150-a gasket; 200-cleaning the container; 301-water supply hole; 302-a water delivery tank; 303-sinking the platform; 304-a sliding hole; 305-an annular groove; 341-a connecting portion; 342-a guide; 3411-mounting hole.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

As shown in fig. 7, an embodiment of the present invention provides a container cleaning method, including inserting a rinsing head into an interior of a cleaning container, performing high-pressure rinsing on the interior of the cleaning container, and moving the rinsing head during the rinsing; the cleaning brush is extended into the cleaning container, and the inside of the cleaning container is brushed by the rotation of the cleaning brush; the interior of the cleaning container is rinsed again by the rinsing head and the rinsing head is moved during the rinsing process.

Specifically, the flushing head is firstly extended into the cleaning container to flush the interior of the cleaning container at high pressure, and the dirt on the inner wall can be directly forced to be peeled off under the action of the high pressure, or the adhesion force of the dirt relative to the inner wall is weakened, so that the impurities and the dirt on the inner wall of the cleaning container are flushed completely. And the flushing head is moved in the cleaning process so as to facilitate more complete and comprehensive cleaning. Then, the cleaning brush is stretched into the cleaning container, the inside of the cleaning container is brushed by utilizing the rotation of the cleaning brush, and the cleaning brush has friction on the inner wall of the cleaning container, so that brushing is realized, and stubborn dirt is cleaned. And then, the interior of the cleaning container is washed again by using the washing head so as to completely strip off the brushed dirt relative to the inner wall, and the cleaning container is further completely cleaned by using the movement of the washing head. That is, through the washing process of washing-brushing-washing, and the use of the washing head and the cleaning brush, not only the operation intensity is reduced, the working pressure of workers is relieved, but also the cleaning efficiency and the cleaning effect are improved, and the residue of dirt in the cleaning container is reduced. In addition, due to the adoption of the cleaning mode, compared with manual wiping, the exposure dose of workers to nuclear pollution is obviously reduced, and the cleaning safety is improved.

It should be noted that the "flushing" in the third step of the "flushing-brushing-flushing" process may be high-pressure flushing or normal-pressure flushing. Generally, the purpose of this washing is to wash the dirt after brushing clean.

As shown in FIG. 7, in some embodiments, the rinse is performed with demineralized water at a pressure of 0.6MPa to 1.3 MPa. In particular, the use of demineralized water as a rinse agent effectively reduces the risk of scale formation due to excessive ions. For example, a pressure of 1.3MPa of demineralized water may be used for the first flushing, and a pressure of 1MPa of demineralized water may be used for the second flushing. Alternatively, the first time, the pressure of the desalted water is 1MPa, 1.1MPa, 1.25MPa, etc., and the second time, the pressure of the desalted water is 0.6MPa, 0.78MPa, 0.95MPa, 1.2MPa, etc. In addition, the use of the demineralized water can effectively control the generation of radioactive wastes and improve the safety.

As shown in fig. 7, in some embodiments, the rinsing head employs a high-pressure rotary spray head, and the rinsing head reciprocates at least twice in the axial direction of the cleaning vessel. The use of high pressure rotatory nozzle not only makes spun rivers become high-pressure rivers, utilizes the rotation of shower nozzle to realize 360 degrees no dead angles clearance moreover, improves clean effect. Meanwhile, in the process of flushing, the flushing head moves back and forth along the axial direction of the cleaning container, so that 360-degree rotation and axial movement of the flushing head are combined, and the cleaning container can be thoroughly cleaned from one end to the other end of the cleaning container.

As shown in fig. 1, 2, 5 and 6, an embodiment of the present invention also provides a cleaning apparatus that can be used in the above-described container cleaning method. The cleaning device comprises a washing head 10, a cleaning brush 20, a first connecting seat 30 and a second connecting seat 40, wherein the washing head 10 is connected with a washing pipe 50, the washing pipe 50 is connected with the first connecting seat 30 in a sliding mode, the cleaning brush 20 is connected with the second connecting seat 40 in a rotating mode, and the first connecting seat 30 and the second connecting seat 40 can be selected to be detachably connected with a cleaning container 200; the first connecting seat 30 has a water supply hole 301 for connecting the water outlet pipe 60, and the water supply hole 301 can communicate with the inner cavity of the cleaning container 200.

Specifically, the first connecting seat 30 and the second connecting seat 40 are mainly used for installing the washing head 10 and the cleaning brush 20 respectively relative to the cleaning container 200, so that the washing head 10 can wash the inner wall of the container with desalted water, and the cleaning brush 20 can wash the inner wall of the container conveniently. Moreover, the first connecting seat 30 and the second connecting seat 40 can be detachably connected with respect to the cleaning container 200, so that the replacement and installation are facilitated. The flushing pipe 50 connected to the flushing head 10 is slidably connected to the first connecting seat 30, so that the flushing pipe 50 drives the flushing head 10 to move in the cleaning container 200, and the cleaning container 200 can be cleaned in multiple directions. Meanwhile, the cleaning brush 20 is rotatably connected with the second connecting seat 40, so that the cleaning brush 20 rotates in the cleaning container 200 to brush the inner wall of the container. Wherein, a water supply hole 301 connected with the water outlet pipe 60 is arranged on the first connecting seat 30, and when the first connecting seat 30 is installed corresponding to the cleaning container 200, the water supply hole 301 is communicated with the inner cavity of the cleaning container 200, thereby facilitating the discharge of the waste water after being washed by the washing head 10 from the water supply hole 301 through the water outlet pipe 60. That is to say, this cleaning device adopts washing and brush the clean mode of alternating and realize the cleanness of cleaning container 200, compares and cleans for the manual work, not only reduces the operation intensity, alleviates staff's operating pressure, improves cleaning efficiency and cleaning effect moreover, reduces the remaining of dirt in the cleaning container 200. Moreover, the use of the washing head 10 and the cleaning brush 20 can reduce the exposure dose of workers and improve the operation safety without being directly exposed to the washing environment manually. Wherein the cleaning vessel 200 may be a canister.

As shown in fig. 1, 2, 5 and 6, in actual use, the first connecting base 30 is mounted with respect to the cleaning container 200, and the rinsing head 10 and portions of the rinsing pipe 50 protrude into the inner cavity of the cleaning container 200. The other end of the flushing pipe 50 is connected with the water inlet pipe 120, so that the inner wall of the container is cleaned by the flushing head 10, and during the flushing process, the worker can drive the flushing pipe 50 to move back and forth in the inner cavity of the cleaning container 200 along the axial direction of the cleaning container 200. When the flushing head 10 adopts a high-pressure rotary nozzle, the cleaning container 200 can be cleaned in multiple directions without dead angles by matching with axial reciprocating movement. Meanwhile, the water outlet pipe 60 is connected to the water supply hole 301, so that the flushed waste water can be discharged from the water outlet pipe 60. Then, the first connecting seat 30 is detached relative to the cleaning container 200, the second connecting seat 40 is installed relative to the cleaning container 200, the cleaning brush 20 is placed in the inner cavity of the cleaning container 200, and the inner wall of the container is brushed conveniently by the rotation of the cleaning brush 20 around the axis of the cleaning container 200. After brushing for a period of time, detaching the second connecting seat 40 relative to the cleaning container 200, then installing the first connecting seat 30 relative to the cleaning container 200, and flushing the cleaning container 200 again by using the flushing head 10 to flush the dirt which is just brushed as a final end. Compared with manual wiping, the whole operation flow obviously improves the working efficiency, reduces the working strength and obviously improves the cleaning effect. In some embodiments, the first connecting socket 30 and the second connecting socket 40 are made of 6061 aluminum alloy.

As shown in fig. 2, 3, 4 and 6, in one embodiment, the first connecting socket 30 includes a connecting portion 341 and a guiding portion 342; the guide part 342 is convexly arranged on the connecting part 341 along the axial direction of the connecting part 341, the guide part 342 is used for extending into the cleaning container 200, and the water supply hole 301 axially penetrates through the connecting part 341 and the guide part 342; the connection portion 341 is configured with a plurality of mounting holes 3411 arranged at intervals around an axis of the connection portion 341.

Specifically, the guide portion 342 of the first connecting seat 30 can guide the connecting seat to be installed relative to the cleaning container 200, and the outer diameter of the guide portion 342 is substantially the same as the diameter of the opening of the cleaning container 200, so that the guide portion 342 is prevented from being shaken left and right during the insertion process. The connection portion 341 is provided to detachably connect the connection holder one 30 with respect to the cleaning container 200. In practice, the connection portion 341 is fixed to the cleaning vessel 200 by a plurality of bolts through a corresponding one of the mounting holes 3411. When the first connecting seat 30 needs to be disassembled, the bolt is disassembled, and then the disassembly can be completed. The flushing pipe 50 extends into the inner cavity of the cleaning container 200 through the connection seat (i.e., the connection portion 341 and the guide portion 342). The inner cavity of the cleaning container 200 can be ensured to be communicated only by the through arrangement of the water supply hole 301, so that water outlet is realized. Wherein the flushing pipe 50 is connected to the inlet pipe 120 by a connecting elbow. Wherein, the bolt adopts 304 stainless steel, four, hexagon socket head cap screw (50mm), and specification is M12 × 1.75.

Meanwhile, the mounting manner of the second connecting socket 40 with respect to the cleaning container 200 is the same as that of the first connecting socket 30, with the only difference that the second connecting socket 40 does not have the water supply hole 301. And thus will not be described in detail. In one embodiment, connecting flanges are used for connecting section one 30 and connecting section two 40.

As shown in fig. 2 to 4, in one embodiment, the guide portion 342 is configured with the water transport groove 302 communicating with the water feed hole 301, and the bottom of the water transport groove 302 is flush with the end surface of the connection portion 341 facing the guide portion 342. Specifically, the water delivery groove 302 is provided so that the waste water in the cleaning container 200 can flow to the water supply hole 301 as completely as possible, thereby discharging the waste water for subsequent use. In a specific embodiment, the water delivery groove 302 is opened on a portion of the side wall of the water supply hole 301 such that the inner wall and the water supply hole 301 have no obstruction. The water supply hole 301 is connected with the water outlet pipe 60, and the water outlet pipe 60 is made of 304 stainless steel. The water outlet pipe 60 is divided into an upper part and a lower part, the upper part is connected with the first connecting seat 30 (needing to be sealed by a magic rope or a raw material belt) through a thread with the specification of G1/4-19, and the lower part is a pagoda joint and is connected with a drainage hose through a hoop so as to drain waste water conveniently.

As shown in fig. 2 to 4, in one embodiment, the guide portion 342 is configured with a sinking platform 303 sinking toward the connection portion 341 on the side where the water supply hole 301 is provided. Specifically, the guiding portion 342 may be understood as protruding from the connecting portion 341 along the axial direction of the first connecting seat 30, and is located in the middle of the connecting portion 341. The sinking platform 303 is arranged at one end of the guiding part 342, which is far away from the connecting part 341, and the sinking platform 303 is arranged to facilitate the water flow to the water supply hole 301.

As shown in fig. 2 to 4, in one embodiment, the first connecting seat 30 is configured with a sliding hole 304 for the flushing pipe 50 to pass through, and the hole wall of the sliding hole 304 is provided with an annular groove 305; the cleaning device further comprises a sealing ring 70, wherein the sealing ring 70 is arranged in the annular groove 305 and is compressed between the first connecting seat 30 and the flushing pipe 50. The sealing ring 70 is arranged to realize the sliding between the flushing pipe 50 and the first connecting seat 30, and simultaneously, the sealing connection between the flushing pipe and the first connecting seat can be realized, so that the cleaning agent in the cleaning container 200 cannot easily leak. Wherein, the sealing ring 70 is made of nitrile rubber, and has the specification of 25mm of external diameter and 2.4mm of wire diameter. Typically, the number of sealing rings 70 is two and they are spaced axially along the flush tube 50 to form two seals. Correspondingly, two annular grooves 305 are arranged on the first connecting seat 30. The provision of the annular groove 305 provides location and restraint for the installation of the seal ring 70.

As shown in fig. 5 and 6, in one embodiment, the cleaning brush 20 includes a connecting shaft 21 and a brush roller 22 connected to the connecting shaft 21, and the connecting link two 40 is configured with a rotation hole for the connecting shaft 21 to pass through; the cleaning device further comprises a retainer 80, the retainer 80 is arranged in the rotating hole, and the connecting shaft 21 is rotatably connected with the second connecting seat 40 through the retainer 80. Specifically, the brush roller 22 has bristles, and the brush roller 22 is axially rotated by the connecting shaft 21, so that the inner wall of the container is brushed by the bristles. The arrangement of the retainer 80 can reduce friction and vibration between the connecting shaft 21 and the second connecting seat 40 in the rotating process, and meanwhile, the retainer 80 plays a role in guiding the installation of the connecting shaft 21 relative to the second connecting seat 40. The holder 80 is fixedly connected with the second connecting seat 40 by adopting four pieces of inner hexagon screws M6. In addition, the arrangement of the first connecting seat 30 and the second connecting seat 40 avoids the risk that the flushing pipe 50 and the connecting shaft 21 directly contact the cleaning container 200, thereby reducing the risk of damage to the cleaning container 200.

Wherein the brush roller 22 has a hard teflon roller core and high density nylon filament bristles. The bristle part has a length of about 560mm, a diameter of 120mm and a roller core diameter of 42 mm. In the operation process, the nylon wire brush hair keeps a stressed and bent state in the filter tank so as to increase the brush force. The connecting shaft 21 is made of stainless steel.

As shown in fig. 6, in one embodiment, the cleaning device further includes a guide ring 90, and the guide ring 90 is sleeved on the connecting shaft 21 and is installed in the rotating hole. Due to the arrangement of the guide ring 90, the connection shaft 21 and the second connecting seat 40 do not need to be direct, and the friction is reduced while the guide ring has a guide function. Wherein, the guide ring 90 is made of polytetrafluoroethylene and is in interference fit with the second connecting seat 40.

As shown in fig. 5 and 6, in one embodiment, the cleaning device further comprises a driving member 100 and a coupling 110, and one end of the connecting shaft 21 facing away from the brush roll 22 is connected to the driving shaft of the driving member 100 through the coupling 110. Specifically, the driving shaft of the driving member 100 is connected to the connecting shaft 21 through the coupling 110, so as to drive the connecting shaft 21 to rotate, thereby implementing the brushing operation of the brush roller 22. The coupler 110 is a cross universal coupler 110, and two ends of the cross universal coupler are respectively connected with the connecting shaft 21 and the driving shaft through locking screws, so that the concentricity and the angle deviation between the connecting shaft 21 and the driving shaft are compensated, and the transmission efficiency is improved. The driving part 100 adopts a three-phase alternating-current speed reducing motor, the rated power is 370W, the working voltage is 220V, and the output rotating speed is 20r/min-180 r/min. The speed regulator is matched with the motor for use and is used for regulating the output rotating speed of the motor, and eight gears in total are adjustable. In yet another embodiment, the motor and governor are both mounted on the lift table. The lifting platform comprises a handle, a screw rod, a bedplate, a guide rod and a bracket. The lead screw is rotationally connected with the bracket and is connected with the handle. The number of the guide rods is four, and the guide rods are uniformly distributed on the bracket at intervals in the circumferential direction. The bedplate is screwed with the screw thread of the screw rod and is connected with the four guide rods in a sliding way. The motor is installed on the bedplate. The handle is rotated, and the bedplate is driven to vertically lift through the lead screw, so that the position of the motor can be vertically adjusted. Typically, the lift stroke is between 350mm and 450mm, for example 350mm, 400mm, 450mm, etc. Through the regulation to the motor position, can be convenient for the motor to pass through shaft coupling 110 and be connected with connecting axle 21, the elevating platform also plays the effect that supports and fix to the motor simultaneously, avoids staff's handheld motor to carry out the operation, further reduces operation intensity.

As shown in fig. 2 and 3, in one embodiment, the cleaning device further comprises a water inlet pipe 120 and a connection nipple 130, and the end of the rinsing pipe 50 facing away from the rinsing head 10 is connected to the water inlet pipe 120 via the connection nipple 130. That is, an end of the rinsing pipe 50 facing away from the rinsing head 10 communicates with the water inlet pipe 120 through the connection nipple 130, and the water inlet pipe 120 communicates with the water tank, thereby supplying demineralized water for a rinsing operation. The connecting pipe 130 may be a straight pipe or a bent pipe according to actual requirements. Wherein, the water inlet pipe 120 adopts 304 stainless steel, one end of the water inlet pipe is connected with the connecting pipe 130 (needing to be sealed by magic rope or thread tape) through the screw thread with the specification of G1/2-14, and the other end of the water inlet pipe is provided with a pagoda joint and is connected to high-pressure demineralized water through a hoop and a water inlet hose. Wherein, the connecting pipe 130 adopts 304 stainless steel and 90-degree internal thread elbow.

As shown in fig. 2 and 3, in one embodiment, the cleaning apparatus further comprises a pressure regulating valve mounted to the rinse pipe 50 and located between the water inlet pipe 120 and the rinse head 10. The pressure regulating valve can be used for regulating the pressure of the demineralized water conveyed along the flushing pipe 50, so that the operation of workers is facilitated, and the cleaning effect is improved. For example, the greater the water pressure, the greater the impact force on the inner wall, and the more easily the dirt is peeled off.

As shown in fig. 2, 3 and 6, in one embodiment, the cleaning device further includes a gasket 150, and the gasket 150 is interposed between the first and

second connection sockets

30 and 40 and the cleaning container 200, respectively. The sealing pad 150 is provided to play a role of shock absorption and buffering. The gasket 150 is made of fluororubber.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above examples only show some embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A method of cleaning a container, comprising the steps of:

extending the flushing head into the cleaning container, flushing the interior of the cleaning container at high pressure, and moving the flushing head in the flushing process;

the cleaning brush is extended into the cleaning container, and the inside of the cleaning container is brushed by the rotation of the cleaning brush;

the interior of the cleaning container is rinsed again by the rinsing head and the rinsing head is moved during the rinsing process.

2. A method of cleaning a container according to claim 1, characterized in that flushing is performed with demineralized water at a pressure of 0.6MPa-1.3 MPa.

3. The container cleaning method according to claim 1, wherein the rinsing head employs a high-pressure rotary nozzle, and the rinsing head reciprocates at least twice in the axial direction of the cleaning container.

4. A cleaning device, which is cleaned by the container cleaning method according to any one of claims 1 to 3, and comprises a flushing head, a cleaning brush, a first connecting seat and a second connecting seat;

the cleaning brush is rotatably connected to the second connecting seat, and the first connecting seat and the second connecting seat can be selected to be detachably connected with the cleaning container; the first connecting seat is provided with a water supply hole used for connecting a water outlet pipe, and the water supply hole can be communicated with an inner cavity of the cleaning container.

5. The cleaning apparatus defined in claim 4, wherein the attachment section includes a connecting portion and a guide portion;

the guide part is convexly arranged on the connecting part along the axial direction of the connecting part, the guide part is used for extending into the cleaning container, and the water feeding hole axially penetrates through the connecting part and the guide part; the connecting portion is configured with a plurality of mounting holes spaced about an axis of the connecting portion.

6. The cleaning device as claimed in claim 5, wherein the guide portion is configured with a water delivery groove communicating with the water delivery hole, and a bottom of the water delivery groove is flush with an end surface of the connecting portion facing the guide portion.

7. The cleaning apparatus as claimed in claim 5, wherein a side of the guide portion where the water supply hole is provided is configured with a sinking platform sinking toward the connection portion.

8. The cleaning device as claimed in claim 4, wherein the connecting base is configured with a sliding hole for the flushing pipe to pass through, and the hole wall of the sliding hole is provided with an annular groove;

9. The cleaning device as claimed in claim 4, wherein the cleaning brush includes a connecting shaft and a brush roller connected to the connecting shaft, the connecting shaft being configured with a rotation hole for the connecting shaft to pass through;

the cleaning device further comprises a retainer, the retainer is arranged in the rotating hole, and the connecting shaft is rotatably connected with the second connecting seat through the retainer.

10. The cleaning apparatus as claimed in claim 9, further comprising a guide ring fitted around the connection shaft and installed in the rotation hole.

11. The cleaning apparatus defined in claim 9, further comprising a drive member and a coupling, wherein an end of the connecting shaft facing away from the brushroll is connected to a drive shaft of the drive member by the coupling.

12. The cleaning device as claimed in claim 4, characterized in that the cleaning device further comprises a water inlet pipe and a connection stub, through which the end of the rinsing pipe facing away from the rinsing head is connected to the water inlet pipe.

13. The cleaning apparatus defined in claim 12, further comprising a pressure regulating valve mounted to the flush tube between the inlet tube and the flush head.

14. The cleaning device of claim 4, further comprising a gasket interposed between the first connecting seat and the second connecting seat and the cleaning container, respectively.